Via Politico, the Clinton campaign has emailed out excerpts of speeches set for tonight. Here's a portion of Sen. Elizabeth Warren's remarks, which will aim squarely at Donald Trump. Note the connection that she makes between Trump's divisiveness and economic justice. Warren's direct appeal to the left: "When we turn on each other, we can’t unite to fight back against a rigged system."

"Trump thinks he can win votes by fanning the flames of fear and hatred. By turning neighbor against neighbor. By persuading you that the real problem in America is your fellow Americans – people who don’t look like you, or don’t talk like you, or don’t worship like you…

"That’s Donald Trump’s America. An America of fear and hate. An America where we all break apart. Whites against Blacks and Latinos.

"Christians against Muslims and Jews. Straight against gay. Everyone against immigrants. Race, religion, heritage, gender – the more factions the better.

"But ask yourself this. When white workers in Ohio are pitted against black workers in North Carolina, or Latino workers in Florida – who really benefits?

"Divide and Conquer is an old story in America. Dr. Martin Luther King knew it. After his march from Selma to Montgomery, he spoke of how segregation was created to keep people divided. Instead of higher wages for workers, Dr. King described how poor whites in the South were fed Jim Crow, which told a poor white worker that, quote, “no matter how bad off he was, at least he was a white man, better than the black man.” Racial hatred was part of keeping the powerful on top.…

"When we turn on each other, bankers can run our economy for Wall Street, oil companies can fight off clean energy, and giant corporations can ship the last good jobs overseas. …

"When we turn on each other, we can’t unite to fight back against a rigged system.

"Well, I’ve got news for Donald Trump. The American people are not falling for it!"

Meanwhile, earlier today Trump said this about Warren at a town hall in Roanoke, Va.:

“You don’t have to go with Pocahontas. She is the worst senator in the U.S. Senate. She’s got a fresh mouth. Other than that, she’s got nothing going.”